1321320134024 has 32 divisors (see below), whose sum is σ = 2710444464000. Its totient is φ = 598879129920.

The previous prime is 1321320133997. The next prime is 1321320134053. The reversal of 1321320134024 is 4204310231231.

It is a junction number, because it is equal to n+sod(n) for n = 1321320133984 and 1321320134002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21480752 + ... + 21542175.

It is an arithmetic number, because the mean of its divisors is an integer number (84701389500).

Almost surely, 2^{1321320134024} is an apocalyptic number.

It is an amenable number.

1321320134024 is an abundant number, since it is smaller than the sum of its proper divisors (1389124329976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321320134024 is a wasteful number, since it uses less digits than its factorization.

1321320134024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43023293 (or 43023289 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1321320134024 its reverse (4204310231231), we get a palindrome (5525630365255).

The spelling of 1321320134024 in words is "one trillion, three hundred twenty-one billion, three hundred twenty million, one hundred thirty-four thousand, twenty-four".